import java.util.Timer;
import java.util.TimerTask;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User:
 * Date: 2025-10-14
 * Time: 14:14
 */
public class demo1 {
    public static void main(String[] args) {
       Timer timer = new Timer();
       timer.schedule(new TimerTask() {
           @Override
           public void run() {
               System.out.println("hello 3000");
           }
       }, 3000);

       timer.schedule(new TimerTask() {
           @Override
           public void run() {
               System.out.println("hello 2000");
           }
       }, 2000);

       timer.schedule(new TimerTask() {
           @Override
           public void run() {
               System.out.println("hello 1000");
           }
       }, 1000);

        System.out.println("hello main");
    }
}
